Data Bank | Yazilim Ders

What are the Different Types of Classloaders in Java ?

Java Classloader is the part of the Java Runtime Environment (JRE) that loads classes on demand into Java Virtual Machine (JVM)...

203 Java

How HashMap Works in Java ?

In Java, a HashMap works on the concept of hashing...

186 Java

How Will You Create a Shallow Copy of a Map in Java ?

In Java, most implementations of Map interface provide a constructor to create copy of another map. But the copy method is not synchronized...

195 Java

Creating a Map with Reverse View and Lookup in Java

In a Map we can lookup for a value by using a distinct key. In a Map with reverse view and lookup, even the values...

192 Java

What is the Difference Between remove Methods of Collection and Iterator in Java ?

In Collection interface remove(Object o) method is used to remove objects from a Collection...

209 Java

When is UnsupportedOperationException Thrown in Java ?

In a Java collection UnsupportedOperationException is thrown when the requested operation is not supported by the collection...

200 Java

How Can We Improve the Performance of IdentityHashMap in Java ?

IdentityHashMap class has one tuning parameter for performance improvement: expectedMaxSize...

186 Java

What is an EnumSet in Java ?

EnumSet is a specialized implementation of Set...

203 Java

What is the Importance of hashCode and equals Methods in Java ?

In a HashMap collection it is very important for a key object to implement hashCode() method and...

189 Java

What is the Difference Between Fail-fast and Fail-safe Iterator in Java ?

Differences between Fail-fast and Fail-safe iterators are as follows...

209 Java

How remove Method is Implemented in a HashMap in Java ?

Remove() method in HashMap uses logic similar to the one used in get() method. First we locate the correct...

196 Java

What are the Differences Between a Vector and an ArrayList in Java ?

An ArrayList is a newer class than a Vector. A Vector is considered a legacy class in Java. The differences are...

181 Java

What are the Main Benefits of Collections Framework in Java ?

Main benefits of Collections Framework in Java are as follows...

189 Java

What is the Difference Between Throw and Throws in Java ?

Java provides throw keyword to throw an exception from a method or a static block. Java provides throws...

207 Java

What are the Differences Between a Checked and Unchecked Exceptions in Java ?

Checked Exceptions extend Throwable class, but they do not extend RuntimeException or...

195 Java

What is String Interning in Java ?

String interning refers to the concept of using only one copy of a distinct String value that is Immutable...

178 Java

Why Do We Use finalize Method in Java ?

Java provides finalize() method to perform any cleanup before Garbage Collection. This method is in Object...

210 Java

How Does Garbage Collection Work in Java ?

Java has an automated process called Garbage Collector for Memory Management. It is a daemon in JVM that monitors...

229 Java

Why Java Provides Garbage Collector ?

In Java, there are no pointers. Memory management and allocation is done by JVM. Since memory allocation...

191 Java

How Can We Reference an Unreferenced Object Again in Java ?

We can provide implementation in finalize() method to reference and unreferenced object. For an unreferenced...

237 Java

Total Result : 153